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Clean Water Act discharge permit · NPDES ALG110026

CASTONE CORPORATION, Opelika, AL: NPDES ALG110026 discharge permit, effluent exceedances, inspections, penalties

CASTONE CORPORATION, held by Castone Corporation, holds NPDES permit ALG110026. EPA’s file records it issued August 3, 2017 and expiring August 31, 2022.

CASTONE CORPORATION, Opelika, Alabama: Coverage under a general permit ALG110026, held by Castone Corporation; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued August 3, 2017, term to August 31, 2022.

  • pH: 6 limits, 118 violations of any kind, 2 effluent exceedances, latest December 31, 2015.
  • Solids, total suspended: 3 limits, 58 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 2 limits, 54 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 2 limits, 54 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 2 limits, 28 violations of any kind, 0 effluent exceedances.
  • Oil and grease: 0 limits, 26 violations of any kind, 0 effluent exceedances.
  • Rainfall: 1 limit, 4 violations of any kind, 0 effluent exceedances.
  • Annual Certification Statement: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • April 16, 2026: Evaluation (S).

Alabama holds 2,504 Industrial stormwater coverages of this permit type in EPA’s file; 1,147 were issued before ALG110026.

Coverages issued nearest ALG110026

CASTONE CORPORATION among its neighbors

EPA’s permit file holds 195 discharge permits in the Upper Chewacla Creek subwatershed (HUC 031501100202), ALG110026 among them. Its county holds 551, 4 of them major permits; ALG110026 is a minor permit.

Other permits in the Upper Chewacla Creek subwatershed (HUC 031501100202)

Identity

Facility as filedCASTONE CORPORATION
Permittee as filedCastone Corporation
NPDES IDALG110026
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedAugust 3, 2017
Expiration dateAugust 31, 2022
AddressOpelika, AL 36804
Receiving water impaired303(D) Listed
SubwatershedUpper Chewacla Creek (HUC 031501100202)

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH61182December 31, 2015
Solids, total suspended3580
Phosphorus, total [as P]2540
Flow, in conduit or thru treatment plant2540
Oil & Grease2280
Oil and grease0260
Rainfall140
Annual Certification Statement100

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ALG110026.

Inspections

DateWhat EPA recordedAgency
April 16, 2026EvaluationS

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES ALG110026.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit ALG110026, held by CASTONE CORPORATION in Opelika, AL, which is administratively continued past its expiration date. The page lists 8 pollutants on file, 7 under a numeric limit, and 1 with an effluent exceedance.